A close examination of the tape shows none of the five masked men is wearing gloves, so federal officials are trying to determine if there are any tell-tale tattoos on their hands. One of the clues the FBI and CIA is studying is the large gold ring Zarqawi is wearing on his right hand, giving off a glare several times during the six-minute tape.
Khilafah article
That is taken from an ABC article describing efforts to determine of the executioner is, as believed and reported to be, al-Qaeda bad guy al-Zarqawi.
And here is the headline on that article reprinted at Khilafah:
Executioner wore gold ring - forbidden by Islam
